Hi, I have been on Evorel Conti patches for several years. Never any issues. In the last three months or so they have started falling off before the change day. This has happened more than 5 times, have they changed the glue formula? Anyone else having this issue? I just found my latest patch, one day after I applied it, inside my trousers rather than on my thigh. It is really driving me mad. Do I stick to original days, change day or what? Why are they suddenly not sticking? They seem to just dry up and fall off time after time.